Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 663 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 3 Tomorrow

UA 663 · DEN → MFR

departs 7:23 PM MT · arrives 9:09 PM PT

Forecast issued Fri 2:00 PM ET · 31h before departure

Arrive at MFR more than 15 minutes late?

25% chance · ±3 pts −2 pts · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to MFR?

On time or early
74%
15–30 min late
14%
30 min–1 hour late
5%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ 7pm departures from DEN are often late

↑ Later flights pick up delays from earlier in the day

↑ This flight has been late 21% of the time recently

↓ Mostly benign weather forecast at DEN

↓ UA's recent on-time record

Weather at each end

DEN (origin) Gusts23 kt Ceilingnone (clear) Visibility10+ mi Precipnone

MFR (destination) Gusts4 kt Ceilingnone (clear) Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

UA 663 · DEN → MFR

Odds over time

How late will it get to MFR?